Home / 78,796,877.48-118,241,374.59-56,915,680.04

Finding the Fourth Proportional to 78,796,877.48, 118,241,374.59 and 56,915,680.04

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Solution

The fourth proportional to 78,796,877.48, 118,241,374.59 and 56,915,680.04 is: 85,406,788.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,796,877.48 : 118,241,374.59 = 56,915,680.04 : x
  2. Step 2: Convert to fraction form
    78,796,877.48/118,241,374.59 = 56,915,680.04/x
  3. Step 3: Cross multiply
    78,796,877.48x = 118,241,374.59 × 56,915,680.04
  4. Step 4: Simplify right side
    78,796,877.48x = 6,729,788,243,369,647
  5. Step 5: Solve for x
    x = 6,729,788,243,369,647/78,796,877.48
  6. Step 6: Final answer
    x = 85,406,788.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.